Citizen participation is firmly on the agenda of many Western policy makers. Numerous opportunities for individuals to participate in public decision-making have been created. However, few citizens use these opportunities. Those who do are often the highly educated, white, middle and upper classes that also tend to dominate other democratic spaces. Opportunities to become active can increase inequalities in terms of whose voices are heard in public decision-making. This fundamentally challenges the central democratic value of equality. Nevertheless, others can represent the interests of those who remain silent. Using the concept of representative claim this paper explores a variety of forms of representation (electoral, formal non-electoral and informal self-appointed) in the domain of social policy which is currently decentralized in the Netherlands. We conclude that especially informal self-appointed representatives such as medical professionals, churches and patient organizations can potentially play an important role in representing groups who often remain unheard in the public debate. They can therefore play an important role in ensuring the democratic quality of the decentralization process.